Nanocrystallization at shear bands in bulk metallic glass matrix composites

TitleNanocrystallization at shear bands in bulk metallic glass matrix composites
Publication TypeJournal Article
Year of Publication2008
AuthorsLee MH, Bae DH, Kim DH, Kim WT, Sordelet DJ, Kim KB, Eckert J
Journal TitleScripta Materialia
Volume58
Pages651-654
Date PublishedApr
Type of ArticleArticle
ISBN Number1359-6462
Accession NumberISI:000254197600009
Keywordsalloy, AMORPHOUS METAL, behavior, CRYSTALLIZATION, fracture, metallic glass, metallic glass composite, NANOCRYSTALLIZATION, PLASTIC-DEFORMATION, powders, pressure, shear band, TRANSMISSION ELECTRON-MICROSCOPY, WARM EXTRUSION
Abstract

We investigated the effect of reinforcement on the formation of nanocrystals at shear bands in a Ni-based metallic glass matrix composite in comparison with monolithic Ni-based bulk metallic glass when shear bands are generated during deformation. The results suggest that the occurrence of nanocrystallization at a shear band implies a stress concentration by a geometrical effect of the reinforcement phase on the compressive loading conditions. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

DOI10.1016/j.scriptamat.2007.11.032
Alternate JournalScr. Mater.